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Zulkardi
Universitas Sriwijaya
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Bahan Ajar Determinan dan Invers Matriks Berbasis Android untuk SMA Kelas XI Devi Wahyu Safitri; Zulkardi; Hapizah
Jurnal Gantang Vol 5 No 2 (2020): Jurnal Gantang Volume 5 Nomor 2 September 2020
Publisher : Universitas Maritim Raja Ali Haji

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (789.039 KB) | DOI: 10.31629/jg.v5i2.2306

Abstract

Penelitian ini bertujuan untuk: (1) menghasilkan bahan ajar determinan dan invers matriks berbasis android untuk SMA Kelas XI yang valid dan praktis, dan (2) mengetahui efek potensialnya terhadap hasil belajar peserta didik kelas XI. IPA 6 SMA Negeri 8 Palembang yang terdiri dari 34 orang sebagai subjek penelitian. Penelitian ini merupakan jenis penelitian pengembangan atau development research yang terdiri dari dua tahapan, yaitu: tahap preliminary meliputi analisis dan desain, dan tahap formative evaluation meliputi self evaluation, prototyping (expert review, one to one, small group), dan field test. Teknik pengumpulan data dengan walkthrough, observasi, wawancara dan tes. Hasil dari penelitian ini adalah: (1) bahan ajar determinan dan invers matriks berbasis android untuk SMA Kelas XI terkategori valid dan praktis, dan (2) bahan ajar yang dikembangkan memiliki efek potensial terhadap hasil belajar peserta didik rata-rata terkategori baik, yaitu 13 orang memiliki kemampuan dalam kategori sangat baik, 12 orang terkategori baik, 4 orang terkategori cukup, dan 5 orang terkategori kurang.
Kemampuan Berfikir Kreatif Siswa dalam Memecahkan Masalah Matematika Konteks Jembatan Gantung Lahat M. Arrasikh Hidayatullah Arrasikh; Zulkardi; Ely Susanti
Jurnal Derivat: Jurnal Matematika dan Pendidikan Matematika Vol. 9 No. 2 (2022): Jurnal Derivat (Desember 2022)
Publisher : Pendidikan Matematika Universitas PGRI Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31316/jderivat.v9i2.4285

Abstract

This study aims to determine the level of creative thinking of MTs Negeri 1 Muara Enim stnudents in solving mathematical problems in the context of suspension bridges. Taking the subject using purposive sampling technique, the subjects of this study were 3 students with high mathematical abilities. Test questions to see creative thinking skills and interview clues are used as research instruments. Data reduction, data presentation, and drawing conclusions are outlined guidelines in analyzing data in this study. The results showed that the three subjects in this study had been able to demonstrate and present their creative thinking abilities with diverse levels of creative thinking. Based on the results of the answers to the 2 essay questions given, MSE subjects were able to meet the existence of fluency and novelty indicators which showed that they were at the level of creative thinking ability 3 (creative) while CR and RA subjects were only able to meet the novelty indicators that were at the level of creative thinking ability level 2 (quite creative). Keyword: Creative thinking, mathematical problems, bridge contexts
COLLABORATIVE LEARNING DALAM PENINGKATAN KAPASITAS GURU MENYUSUN PERANGKAT PEMBELAJARAN NUMERASI DI SMP KOTA PALEMBANG Ratu Ilma Indra Putri; Zulkardi; Elika Kurniadi; Weni Dwi Pratiwi; Rini Herlina; Laela Sagita; Hasbi Ramadhan; Allen Marga Retta; Anggria Septiani Mulbasari; Viona Adelia; Nabila Putri Isamer; Atikarani Noer Saleha
Jurnal Berdaya Mandiri Vol. 4 No. 3 (2022): Jurnal Berdaya Mandiri (JBM)
Publisher : Universitas PGRI Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31316/jbm.v4i3.4522

Abstract

Teacher innovation in designing interesting learning requires continuous improvement of abilities. The learning assessment paradigm that revolves around the Asasemen Kopetnsi Minimum (AKM) where one of them is numeracy or also called numeracy literacy and mathematical literacy. A problem was found in teachers at the Palembang City MGMP in Difficulty in compiling learning tools that strengthen students' numeracy skills. Through training and mentoring in the learning community or collaborative learning, selecting KD for numeracy strengthening, determining numeracy demands for the KD, determining numeracy activities that can be embedded in learning, and determining mathematical tools and mathematical terms (terminology) used in activities. The results show that the teacher is able to use contexts that are close to the daily lives of students in learning. keyword: Collaborative Learning, Learning Tools, Numeracy
PENGEMBANGAN LKPD BERBASIS PMRI DALAM KONTEKS PIRING MAKAN IDEAL PADA MATERI PECAHAN Ainun Mardia; Zulkardi; Ratu Ilma Indra Putri; Ely Susanti
TRANSFORMASI Vol 6 No 2 (2022): TRANSFORMASI: Jurnal Pendidikan Matematika dan Matematika
Publisher : Pendidikan Matematika FMIPA Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/tr.v6i2.2365

Abstract

Tujuan dari penelitian ini adalah menghasilkan produk LKPD yang berbasis PMRI pada materi pecahan yang valid dan praktis. Penelitian ini adalah penelitian design research tipe development studies dengan dua tahapan yaitu preliminary evaluatioan dan formative evaluation alur dari Tessmer yaitu prototyping, self-evaluation, expert review, one-to-one, small group, dan field test. Teknik pengumpulan data yang digunakan adalah walkthorugh, dokumentasi, angket respon peserta didik, dan wawancara. Hasil penelitian berupa LKPD berbasis pendekatan PMRI yang valid berdasarkan komentar dan saran yang diberikan validator dan dinyatakan valid oleh para tim ahli pada tahap expert review dan menghasilkan LKPD berbasis PMRI yang praktis menurut perhitungan angket respon siswa di tahapan one-to-one, smal group, dan field test.
STUDENTS' CRITICAL THINKING SKILLS IN SOLVING PISA-TYPE MATH PROBLEMS IN THE CONTEXT OF FERRIS WHEELS Pratiwi Lidia; Zulkardi
Journal of Pedagogical Content Knowledge Vol. 1 No. 1 (2025): Journal of Pedagogical Content Knowldege (March)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jpck.v1i1.473

Abstract

This study aims to describe students' critical thinking skills in solving PISA-type mathematics problems in the context of the Ferris wheel at SMP IT Izzuddin Palembang. This study is a descriptive study with a qualitative approach and was carried out face-to-face, with the subjects of the study being 22 students of class VIII. 2 Halimah SMP IT Izzuddin Palembang. Data collection techniques used written tests and interviews. Based on the results of the analysis and discussion that have been carried out, students' critical thinking skills are in the low category with an average score of 40.54. Based on the percentage of achievement of critical thinking ability indicators, there are several indicators that often appear, namely the analysis indicator 68% and the indicator that appears the least is the inference indicator 4%.
Development of Magic Cube Learning Media to Enhance Students: Conceptual Understanding of Number Patterns Abelia Chaerani; Dewi Nurul Lathifah; Dea Gusera Andini; Abdi Gusti Nagara; Elsa Susanti; Zulkardi; Budi Mulyono; Meryansukmayeka Meryansukmayeka
Sriwijaya University Learning and Education International Journal Vol. 2 No. 3 (2025): Sriwijaya University Learning and Education International Journal
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55379/knzz4x89

Abstract

This study aims to develop the Magic Cube, an innovative manipulative learning medium designed to improve students’ conceptual understanding of number patterns. Number patterns are essential for building mathematical reasoning and problem-solving skills, yet many students struggle due to abstract teaching methods that lack interactive components. Previous studies have highlighted the effectiveness of game-based learning, but there remains a research gap in developing tangible and engaging media that directly support students’ comprehension. To address this, the study applied a Research and Development (R&D) approach using the ADDIE model, consisting of five stages: analysis, design, development, implementation, and evaluation. The Magic Cube, designed as a three-dimensional cube equipped with material and question cards, was validated by two media experts and two material experts, achieving validity scores of 86% and 73%. Practicality tests involving teachers and students resulted in scores of 84.83% and 86.6%, respectively. Furthermore, pre-test and post-test results showed a significant improvement in students’ conceptual understanding, with an N-Gain score of 0.7, categorized as high. These findings indicate that the Magic Cube is a valid, practical, and effective instructional tool. The study contributes to enhancing interactive mathematics learning and provides broader implications for fostering active engagement and improving students’ comprehension of abstract mathematical concepts.
Development of Kipas MATHIC Media to Improve Concept Understanding Ability on Trigonometry Material Adellia Tri Rahayu; Deria Azka Nurul Fathya; Hanayuki Alya; Intan Amalia; Budi Mulyono; Elsa Susanti; Meryansumayeka; Zulkardi
Sriwijaya University Learning and Education International Journal Vol. 2 No. 3 (2025): Sriwijaya University Learning and Education International Journal
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55379/56jy0x22

Abstract

This study aims to develop teaching methods that are effective, supportive, and efficient in enhancing students' understanding of mathematical concepts. The research followed the ADDIE development model, which consists of five phases: analysis, design, development, implementation, and evaluation. The study was conducted in response to students' difficulties in understanding trigonometric concepts and recent advancements in educational media identified by researchers. The feasibility and usability of the instructional tool was assessed by both teachers and students. Its validity was evaluated by involving media and content experts. A descriptive analysis was then performed on data collected through observations and interviews conducted throughout the research process. The results of the validity assessment showed scores of 89.29% from content experts and 80.58% from media experts, indicating that the instructional tool is highly suitable for classroom use. The evaluation form revealed scores of 90% from teachers and 78.72% from students, suggesting that the tool is considered very practical. Furthermore, an analysis of student performance demonstrated that Kipas MATHIC effectively enhances students’ understanding of trigonometric concepts.
Exploration of Jejamok Games as Local Wisdom: Basis for Developing E-Comics for Integer Learning Ratih Handayani; Ratu Ilma Indra Putri; Zulkardi; Darmawijoyo
Riemann: Research of Mathematics and Mathematics Education Vol. 8 No. 1 (2026): EDISI APRIL
Publisher : Program Studi Pendidikan Matematika Universitas Katolik Santo Agustinus Hippo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38114/riemann.v8i1.181

Abstract

The persistent challenges students face in understanding integers indicate the need for learning approaches that connect abstract mathematical concepts with meaningful real-life experiences. Although culturally grounded contexts have been widely recommended in mathematics education, there remains a limited understanding of how specific traditional games can be systematically interpreted to reveal their embedded mathematical structures and support conceptual learning. This study seeks to investigate the Jejamok traditional game from North Lampung through an ethnomathematics perspective to identify its potential as a context for learning integer concepts and as a basis for developing instructional media. A qualitative exploratory approach was employed, involving literature review, field observations, and interviews with local community members and teachers. The findings reveal that Jejamok embodies several key mathematical ideas related to integers, including (1) positive and negative values represented through capture and release actions, (2) addition and subtraction of integers through score changes, and (3) comparison of quantities and strategic decision-making based on game situations. These concepts emerge naturally from the game’s scoring system and player interactions, providing a meaningful bridge between informal experiences and formal mathematical understanding. Furthermore, the game structure reflects a form of situated mathematical representation that supports progressive mathematization within the PMRI framework. In addition, Jejamok reflects important cultural values such as cooperation, sportsmanship, and nengah nyappur, which contribute to social learning. These findings suggest that Jejamok can serve not only as a contextual learning resource but also as a conceptual foundation for developing culturally responsive instructional media, such as e-comics. This study contributes to the development of culturally grounded mathematics instruction by offering an empirically supported and theoretically informed model for connecting local cultural practices with formal mathematical learning.
Pendekatan PMRI pada Materi Persamaan Liniear dengan Konteks Kuliner Sumatera Selatan untuk Meningkatkan Pemahaman Aljabar Siswa SMP Dhiya Qatrunnada; Zulkardi; Ely Susanti; Meryansumayeka
Jurnal Silogisme : Kajian Ilmu Matematika dan Pembelajarannya Vol 10 No 02 (2025): Desember
Publisher : Universitas Muhammadiyah Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24269/silogisme.v10i02.10743

Abstract

Penelitian ini bertujuan untuk menghasilkan Local Instructional Theory (LIT) pada materi persamaan linear di kelas VIII SMP menggunakan pendekatan Pendidikan Matematika Realistik Indonesia (PMRI) dengan konteks kuliner Sumatera Selatan. Penelitian ini menggunakan metode design research tipe validation studies yang terdiri atas tiga tahap, yaitu preparing for the experiment, design experiment (yang meliputi pilot experiment dan teaching experiment), serta retrospective analysis. Subjek penelitian adalah 30 siswa kelas VIII SMP Negeri 2 Palembang tahun ajaran 2024/2025. Teknik pengumpulan data meliputi observasi, wawancara, catatan lapangan, dan dokumentasi. Pada tahap awal disusun Hypothetical Learning Trajectory (HLT) berbasis PMRI yang kemudian diuji dan direvisi melalui pilot experiment. Hasil pilot experiment menunjukkan bahwa LKS yang dirancang belum sepenuhnya mendukung pemahaman siswa dalam menyusun persamaan linear. Setelah dilakukan perbaikan, hasil teaching experiment menunjukkan bahwa siswa mampu menyusun dan menyelesaikan persamaan linear dengan berbagai strategi, seperti substitusi, operasi dasar, dan penggunaan tabel. Hasil retrospective analysis menunjukkan bahwa lintasan belajar siswa sesuai dengan HLT yang direvisi dan mendukung terbentuknya LIT yang lebih baik dan relevan. Dengan demikian, pendekatan PMRI melalui konteks kuliner Sumatera Selatan dapat membantu siswa memahami konsep persamaan linear secara lebih bermakna.
Secondary students’ informal strategies in solving enumeration problems prior to formal combinatorics instruction Aan Putra; Zulkardi; Ratu Ilma Indra Putri; Laswadi
Jurnal Elemen Vol 11 No 4 (2025): October
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/jel.v11i4.31088

Abstract

Although enumeration problems are fundamental in combinatorics, little is known about how students intuitively approach such enumeration problems before receiving formal instruction. This exploratory qualitative study investigated the initial strategies employed by twelve-grade students in solving enumeration problems prior to formal instruction on enumeration rules. Fifteen students from a public senior high school in Kerinci, Indonesia, who had not yet learned combinatorics in the curriculum, participated in this study. Data were collected through students’ written responses to three combinatorial problems presented in different real-life contexts and further explored through semi-structured interviews. Only responses demonstrating coherent and interpretable strategy were analyzed. The findings reveal three dominant strategies: listing all possible arrangements, generalizing patterns, and applying the multiplication principle. These findings indicate that students possess intuitive approaches that can serve as a foundation for formal combinatorial reasoning. The study aligns with the Realistic Mathematics Education (RME) perspective, emphasizing the importance of guided reinvention and contextual mathematization, and proposes implications for designing learning trajectories that build on students’ informal reasoning in secondary mathematics education.
Co-Authors Aan Putra Abdi Gusti Nagara Abelia Chaerani Adellia Tri Rahayu Ainun Mardia Allen Marga Retta Anggria Septiani Mulbasari Atikarani Noer Saleha Darmawijoyo Dea Gusera Andini Deria Azka Nurul Fathya Devi Wahyu Safitri Dewi Nurul Lathifah Dhiya Qatrunnada Elsa Susanti Ely Susanti Hanayuki Alya Hapizah Hasbi Ramadhan Intan Amalia Kurniadi, Elika Laela Sagita Laswadi M. Arrasikh Hidayatullah Arrasikh Marhamah Meryansukmayeka Meryansukmayeka Meryansumayeka Meryansumayeka Mulyono, Budi Nabila Putri Isamer Pratiwi Lidia Pratiwi, Weni Dwi Ratih Handayani Ratu Ilma Indra Putri Rini Herlina Viona Adelia Yusuf Hartono